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The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model

I.E. Garduño, H.R. Tamaddon-Jahromi, K. Walters, M.F. Webster, Michael Webster Orcid Logo, Hamid Tamaddon-Jahromi

Journal of Non-Newtonian Fluid Mechanics

Swansea University Authors: Michael Webster Orcid Logo, Hamid Tamaddon-Jahromi

DOI (Published version): 10.1016/j.jnnfm.2015.12.004

Abstract

Modern Computational Rheology techniques are used to interpret an experimental observation, which has remained unresolved for over four decades. The simple flow in question involved the rotation of a solid sphere in an infinite expanse of non-Newtonian elastic liquid. Under some conditions, Giesekus...

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Published in: Journal of Non-Newtonian Fluid Mechanics
Published: 2015
URI: https://cronfa.swan.ac.uk/Record/cronfa26481
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spelling 2016-04-29T16:22:33.6195447 v2 26481 2016-02-22 The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model b6a811513b34d56e66489512fc2c6c61 0000-0002-7722-821X Michael Webster Michael Webster true false b3a1417ca93758b719acf764c7ced1c5 Hamid Tamaddon-Jahromi Hamid Tamaddon-Jahromi true false 2016-02-22 EEN Modern Computational Rheology techniques are used to interpret an experimental observation, which has remained unresolved for over four decades. The simple flow in question involved the rotation of a solid sphere in an infinite expanse of non-Newtonian elastic liquid. Under some conditions, Giesekus observed an interesting secondary flow. This added an ‘inertial’ secondary flow near the rotating sphere to the well-understood ‘slow-flow’ features observed and predicted by others in the 1960s. By employing a Phan-Thien/Tanner (PTT) constitutive model and moving away from the restriction of ‘slow-flow’, we show that it is possible to predict numerically the inertial vortex observed by Giesekus. Journal Article Journal of Non-Newtonian Fluid Mechanics Rotating sphere, secondary flow field, Giesekus inertial vortex, hybrid finite element/finite volume scheme, PTT model 31 12 2015 2015-12-31 10.1016/j.jnnfm.2015.12.004 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2016-04-29T16:22:33.6195447 2016-02-22T14:40:53.5428178 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised I.E. Garduño 1 H.R. Tamaddon-Jahromi 2 K. Walters 3 M.F. Webster 4 Michael Webster 0000-0002-7722-821X 5 Hamid Tamaddon-Jahromi 6 0026481-22022016144151.pdf GardunoInterpretationOfALongStandingRheological2015AM.pdf 2016-02-22T14:41:51.6530000 Output 3691442 application/pdf Accepted Manuscript true 2016-12-31T00:00:00.0000000 true
title The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
spellingShingle The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
Michael Webster
Hamid Tamaddon-Jahromi
title_short The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
title_full The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
title_fullStr The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
title_full_unstemmed The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
title_sort The interpretation of a long-standing rheological flow problem using computational rheology and a PTT constitutive model
author_id_str_mv b6a811513b34d56e66489512fc2c6c61
b3a1417ca93758b719acf764c7ced1c5
author_id_fullname_str_mv b6a811513b34d56e66489512fc2c6c61_***_Michael Webster
b3a1417ca93758b719acf764c7ced1c5_***_Hamid Tamaddon-Jahromi
author Michael Webster
Hamid Tamaddon-Jahromi
author2 I.E. Garduño
H.R. Tamaddon-Jahromi
K. Walters
M.F. Webster
Michael Webster
Hamid Tamaddon-Jahromi
format Journal article
container_title Journal of Non-Newtonian Fluid Mechanics
publishDate 2015
institution Swansea University
doi_str_mv 10.1016/j.jnnfm.2015.12.004
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Modern Computational Rheology techniques are used to interpret an experimental observation, which has remained unresolved for over four decades. The simple flow in question involved the rotation of a solid sphere in an infinite expanse of non-Newtonian elastic liquid. Under some conditions, Giesekus observed an interesting secondary flow. This added an ‘inertial’ secondary flow near the rotating sphere to the well-understood ‘slow-flow’ features observed and predicted by others in the 1960s. By employing a Phan-Thien/Tanner (PTT) constitutive model and moving away from the restriction of ‘slow-flow’, we show that it is possible to predict numerically the inertial vortex observed by Giesekus.
published_date 2015-12-31T03:31:46Z
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score 11.012813

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